Microsoft Management Console & Disk Defragmenter Not working

[cj741]

My microsoft management console and disk defragmenter are not working. Would anyone know how to fix these?

 

[SHAWN]

Download diskeeper. Its in my sig. the free version.

Repair install your o/s. Also see sig.

 

[cj741]

Did what Shawn said and everything is fixed? Thanks for all the help.